Yup … pretty smart solution… twin wall poly carb is prob the best choice for lids (green house panels)… super light and does not bow. Comes in a few different thicknesses. I think mine is around 3/8”. Most hardware stores carry it now. Regular 1/4” poly carb is pretty good also but bows a bit more than the twin wall at double the price. If u go with acrylic ull have to continually flip it over every so often as it bows pretty bad.Picking up my bracing tomorrow after work so hopefully will be water testing again this weekend. I assume that a butt weld would be plenty strong enough to hold lids if I did something like this in a few different spots?
View attachment 1546951
View attachment 1546952